Lightweight ergonomic one-piece closure



FIG. 1 is a top, front, left side, perspective view of the present invention;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a cross-sectional view thereof taken along line 5-5 of FIG. 2; and,

FIG. 6 is a bottom inside perspective view of the design of FIG. 1. 

CLAIM The ornamental design for an lightweight ergonomic one-piece closure, as shown and described. 